package cn.edu.lingnan.association.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class AuthorityFilter implements Filter {
	
	public void destroy() {

	}

	public void doFilter(ServletRequest arg0, ServletResponse arg1,
			FilterChain arg2) throws IOException, ServletException {
				
		HttpServletRequest req = (HttpServletRequest) arg0;
		HttpServletResponse resp = (HttpServletResponse) arg1;
		HttpSession s = req.getSession();
		Integer flag = (Integer) s.getAttribute("ssuper");
		
		if(flag != null){
		if(flag == 1){
			 arg2.doFilter(arg0, arg1);
		}else{
			resp.sendRedirect(req.getContextPath()+"/authority.html");
		}
		
	}else{
		resp.sendRedirect(req.getContextPath()+"/index.html");
	}
				
	}	

	public void init(FilterConfig arg0) throws ServletException {

	}

}
